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73 Magazine (Amateur Radio Today)

73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne Green. The magazine title, 73, means "best regards" in amateur radio lingo. Green, a former editor of CQ Amateur Radio magazine, published the first issue of 73 in October 1960.

At that time, the magazine was headquartered in Brooklyn, New York. Among contributing editors was author and radio personality Jean Shepherd, K2ORS. The magazine was a pioneer promoter of SSB, FM, solid-state, easy construction projects, and the marriage of personal computing and amateur radio. His interest in microcomputing led Green to found several of the early personal computing magazines, including "Desktop Computing", Kilobaud Microcomputing, and 80 Micro, among others. Green was involved in the founding of Byte Magazine, another early and influential microcomputer magazine, later published by his wife, Virginia Londner Green. Since the summer of 1962, 73 was based in Peterborough, New Hampshire. At the peak of its popularity in the 1970s and 1980s, individual issues of 73 totaled more than 300 pages of advertisements, articles and commentary. Heading each issue was Green's editorial column, "Never Say Die", in which he often criticized the American Radio Relay League and his magazine's competitors for their perceived shortcomings. The title "Never Say Die" was a backronym for Green's amateur radio call sign, W2NSD.

After completing 43 years of publication, 73 Amateur Radio Today magazine ceased publication in October 2003. Publisher Wayne Green cited financial pressure from reduced advertising revenue as the prime reason for shutting down publication of the magazine.

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amateur
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73 Magazine (Amateur Radio Today)
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73 Magazine May 1981 (#248) Two-Meter Antennas: Facts and Fables - the truth about omnidirectional antennas on two ...... W1IS 12 The 440-MHz Curtain - hang this broadbanded two-bay collinear on your tower and get 22 dBi to play with ...... WA9OZC 22 The Plumber's Parabolic Mount - a first-class hydraulic system ...... WD4MRJ, KA4JYD 28 The History of Ham Radio - part XIV ...... W9CI 36 The Skeptic's Multiband Ground Plane - This antenna flies in the face of accepted theory. Do you think it...
Topics: antenna, amateur, radio, mhz, frequency, magazine, antennas, tion, ham, amateur radio, radio club,...
73 Magazine (Amateur Radio Today)
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73 Magazine June 1983 (#273) D'Arsonval Dossier - How these meters work and how to make them work for you is no mystery. Discover the inner machinations of the D'Arsonval movement for yourself ...... W1OLP 20 Save Money on Used Meters - Does it work or doesn't it? This simple tester spots real hamfest bargains ...... W3QOM 19 Live, From Across America-It's Field Day! - The Corpus Christi Amateur Radio Club had helicopter TV coverage of its activities. Club member WB4EMI unveils the secret...
Topics: meter, amateur, mhz, radio, antenna, magazine, ham, tor, frequency, ihe, amateur radio, radio club,...
73 Magazine (Amateur Radio Today)
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73 Magazine August 1981 (#251) Wild Turkeys 1, FBI 0 - another foul-up from the feds ...... WA7UDO 12 Sailplanes on Six - these thermal-hunting hems have an edge on the competition ...... WB3BQO 20 The Supernova Station Organizer - in this project, four into one will go! ...... W3BYM 26 Kenwood's TR-9000 - the multi-mode 2-meter rig that's making SSBers out of VHFers ...... WB8BTH, N8RK 30 Butternut's HF5V-1II Vertical - this one really does work equally well in all directions ...... KAlLR 34...
Topics: antenna, amateur, radio, mhz, magazine, power, frequency, swr, tion, amateur radio, power supply,...
73 Magazine (Amateur Radio Today)
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73 Magazine June 1975 (#177) Me Friend ...... W7IDF 17 Homebrew this SSTV Monitor ...... WA9MFF 22 El Cheapo Superbeam ...... WA6NLQ 31 The Smart Alarm ...... WA6KBL 37 An Intimate Look at 160 Meters ...... W2NYU 43 RF Power at 432 ...... K1CLL 48 The Minirepeater ...... WB4DBB 55 Inside Ma Bell ...... Whipple 67 Dirt Cheap Tunable I-F for Converters ...... K0VQY 81 6m IC Rx ...... K1CLL 85 All Band Frequency Marker ...... W1KNI 88 Protect Your Gear with a Latching Relay ...... Ives 93 A Case...
Topics: receiver, mhz, antenna, khz, frequency, transmitter, audio, circuit, meter, repeater, power supply,...
73 Magazine (Amateur Radio Today)
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73 Magazine October 1988 (#337) Packets Full of Pixels - Digital video is now available to the mortal ham ...... WD8AQX 10 A Trip Through The Microwave Spectrum - The scoop on what goes on between 1-10 GHz ...... KT2B 14 10 GHz Polaplexer - Unique way to go full-duplex on 3 cm ...... WB6IGP 20 VHF/UHF Tape Antenna - Fast n' cheap way to get active on 2 meters and above ...... WB3KCZ 24 Portable Re-entrant Cavity Antenna - This "can-do' whip gives better HT antenna performance ...... W7ACI...
Topics: antenna, amateur, radio, mhz, ham, antennas, power, kenwood, frequency, amateur radio, feedback...
73 Magazine (Amateur Radio Today)
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73 Magazine September 1978 (#216) CB to 10-part X: Realistic's Mini 23 ...... K5LUW/K5SA 38 Four-wheel Frenzy! - hams and the Baja International ...... K6WS 26 T-R Erotica - rf switching with PIN diodes ...... W4VGZ 32 The Autodialer Revisited - a circuit board and other improvements ...... W7JSW 34 Watergate Special - create your own 18-minute gap ...... HB9BLU 36 Be Legal - build an ID reminder ...... AD4A/WA4MFY 40 Another IC-22S Scheme - for oddball repeaters ...... WA1ZMO 44 Improving the...
Topics: mhz, antenna, meter, frequency, power, radio, amateur, circuit, model, electronics, amateur radio,...
73 Magazine (Amateur Radio Today)
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73 Magazine July 1976 (#189) Handy Dandy Soldering Iron Cooler Offer ...... WB4FDQ 18 Perfect CW - drive 'em crazy with the Keycoder I ...... WA9VGS 20 The Mini-Mite All-band QRP Rig - runs a mighty seven Watts ...... WA7SCB 30 A Fun Counter Project - an invaluable test instrument for under $50? ...... Plavcan 36 Build a FAX from Scratch - then get satellite pictures and other things ...... W4NK 44 Der Repeatermeister - repeater control, with ID ...... WA1UFE 58 Lightning and Thunder and Other...
Topics: output, power, circuit, kit, antenna, mhz, clock, pin, amateur, frequency, power supply, amateur...
73 Magazine (Amateur Radio Today)
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73 Magazine August 1993 (#395) A Decade of Packet - An anthology of 73 packet radio articles from 1983 to 1993 ...... WA1RZW 10 FM Packet Deviation Meter - Put your packet station on the money for 20 bucks ...... N5OWK 22 Julieboard - An easy-to-build DDS synthesizer for the PC printer port ...... VE3JIL 40 Computer Control for Beam Antennas, Part I - Give your station a smart, new twist ...... K4OND 54 PC Pakratt for Windows - Love at first byte ...... N1EWO 28 The STARTEK ATH-15 Portable...
Topics: radio, amateur, packet, mhz, ham, antenna, digital, power, repeater, amateur radio, radio today,...
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73 Magazine July 1987 (#322) The National Championships - Finally, there's a contest where the "Little Gun" has a chance, where guile wins out over gigawatts ...... KE7C 30 The Two-Meter Transverter Project - Build this VMOS transverter and use all of your Kenwood TS-940's bells and whistles -on two meters! ...... W6YUY 32 Big Time Packet - With the help of a mainframe computer, KITE can control a packet station from his desk -or from around the world ...... K1TE 44 New Life on Two -...
Topics: amateur, radio, mhz, antenna, ham, power, frequency, amateur radio, ham radio, power supply, phone...
73 Magazine (Amateur Radio Today)
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73 Magazine March 1994 (#402) Getting Started With Satellite Imagery - Enjoy a bird's-eye view using your PC and VHF rig ...... KO4BD 10 Using the World's Most Accurate Frequency Standard, Part 3 - Building a good secondary frequency standard ...... K9EUI 18 The TW-1 Cheap Dig ital Front Panel - Easy thumbwheel tuning for the Techno-Whizzy 1 ...... N9JZW 26 The FOXBOX - A voice ID T-hunt controller ...... KI5GH 42 The Commercial General Radiotelephone Operator License - Pass that test! .........
Topics: radio, amateur, mhz, antenna, repeater, ham, frequency, amateur radio, radio today, ham radio,...
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73 Magazine July 1985 (#298) Faces of Dayton '85 ...... KW1O, WB8BTH 8 ICOM's Extended Play - Ten minutes with a Phillips screwdriver gives your IC-751 transmit capability from .1 to 30 MHz! ...... KS4B 12 America's Dream Array - Twenty-seven dishes in a twenty-one-mile pattern make for some serious DXing at the National Radio Astronomy Observatory. Galactic DXCC, anyone? ...... AJ0N 18 WARC for the FT-101E - Here's how to join the fun on our new 12-meter band. And you'll be ready for 18 MHz,...
Topics: radio, amateurs, amateur, mhz, antenna, noise, ihe, ttie, tor, radio amateurs, amateur radio, power...
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73 Magazine October 1994 (#409) Battle of the Monobanders - Iron Mike slugs it out in the CAP arena ...... WB8VGE 10 The Traveler - A sweet home-brew receiver for 80! ...... K5WMS 14 Handy Randy - The tiny tag-along almost random wire tuner for QRP ...... W3RDF 34 Build the Quickie Cheapie Tener - Perhaps the easiest way to get a 1 watt CW rig for the 10 meter band ...... Veronese 36 The Capacity Tuned Folded Loop - A 1/3-wave, 7-foot, 20 meter antenna ...... WA6QBU 38 Video-Charge Your HT! -...
Topics: radio, mhz, amateur, antenna, frequency, ham, ihe, qrp, meter, amateur radio, radio today, feedback...
73 Magazine (Amateur Radio Today)
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73 Magazine September 1986 (#312) A Rotatable What? - How to spin 90 feet of crank-up tower on a lazy susan ...... WA2VUN 28 HF Antennas: All Bands, All Wire - Another round in the crusade against coax—these three 9-band doublets contain no artificial ingredients ...... W0VM 32 Watts My Line - Coax, parallel feeders, or microstrip, this Basic program lets you design your own custom transmission line ...... K4IPV 36 Scaling the Wet Noodle - Antennas in one-quarter time: Experiment with your...
Topics: antenna, amateur, radio, antennas, print, ham, frequency, mhz, amateur radio, voltage, packet...
73 Magazine (Amateur Radio Today)
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73 Magazine July 1994 (#406) The Global Positioning System - An overview ...... WA4BLC 10 World 's Smallest 10 GHz ATV Transmitter - Build one on a PCB using only a few components ...... HB9SLV, HB9RKR 16 EMI/RFI Defense Strategies for Hams - Keep those troublemaking signals out of your mobile installation ...... N7MGT 24 A Delayed Video Trigger for Your Oscilloscope - Convert your surplus scope ...... KC3XM 38 Muttiband Half-Wave Delta Loop (MHDL) - A simple 20-10 meter antenna with an SO-39...
Topics: radio, amateur, mhz, antenna, ihe, gps, ham, frequency, amateur radio, power, radio today, ham...
73 Magazine (Amateur Radio Today)
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73 Magazine January 1983 (#268) Action Machine for 20 - Are home-brew rigs a lost art? No yet! Here's an SSB transceiver you can build ...... WB5IPM 12 An Alarming Procedure - This false-proof repeater emergency alert won't tie up expensive equipment ...... WA1LCF, K1FNX 24 Trimming the Fat from ATV - Why use 3 MHz when 500 kHz will do? WB6FHD proposes a way ...... WB6FHD 32 The Forgetful Autodialer Puzzle - Even Sherlock couldn't figure out how to make an autodialer that reprograms with no...
Topics: antenna, amateur, frequency, ihe, mhz, magazine, receiver, output, tor, amateur radio, toll free,...
73 Magazine (Amateur Radio Today)
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73 Magazine December 1970 (#123) Solid State Exciters - For the build-don't-buy crowd ...... W6YUY 16 Solid State Control for SSB Exciters - For really smooth tuning ...... W4NVK 28 Hams Are A Funny Bunch of People - Except me and thee ...... K3KMO 31 A 2 Meter Minitransmitter - Hand portable for FM repeaters ...... WB6BIH 32 Receiver Offset Tuning for the HW100 - For tuning in old timers who can't stay on frequency ...... WAZEAW 39 The Little Gate Dipper - 1.7 - 225 MHz GDO with no G .........
Topics: amateur, voltage, frequency, cathode, radio, power, circuit, antenna, output, input, amateur radio,...
73 Magazine (Amateur Radio Today)
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73 Magazine May 1978 (#212) A Keyer? Who Needs Another Keyer? - would you believe a $2 keyer? ...... W6APZ 24 Official FCC RFI Report - curing radio and TVI ...... FCC 30 Hey, Old-Timers! The Breadboard Is Back! - jiffy up those IC circuits ...... WA7NEV 46 Fake 'Em Out With Remote Control - TT-operated control unit ...... W4VGI 52 Now-A Digital Capacit- Meter! - simple construction project ...... W3KBM 58 DMM Survival Course - all about using digital multimeters ...... McClelian 62 What...
Topics: amateur, radio, frequency, mhz, antenna, power, amplifier, meter, output, kit, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine March 1995 (#414) A Practical Weather Satellite Receiving System, Part 1 - Set up your own satellite receiver/decoder ...... ZRBUM 10 HF-5AT Antenna - An easy-to-build dual-band HF satellite antenna ...... AC3L 24 Grounding and lightning Protection, Part 2 - Effective RF grounding for the shack ...... W5UOJ 26 The Azden PCS-7200 - A solid 222 MHz mobile transceiver ...... WB2WIK/6 32 Ham University Interactive - Learn code and theory, and play CW games ...... WB6NOA 38 LOGic 4 - Ham...
Topics: radio, mhz, amateur, antenna, ham, frequency, mfj, output, repeater, amateur radio, radio today,...
73 Magazine (Amateur Radio Today)
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73 Magazine February 1992 (#377) The Copper Cactus J-Pole - For 2m and 70cm ...... KE7AX 9 A Five-Component Wideband Amplifier for Your Receiver - Give your VHF receiver a boost! ...... K9EYY 12 An NE-602 RF Signal Generator - Useful test equipment from a versatile IC ...... Kerr 22 Colombian Expedition - Adventure in the Andes ...... KC4VLN 34 PVC Cubical Quad for 10 Meter -Build this $30 plumber's special! ...... KG5BI 38 VBI-360 Beam Indicator - Put your color display on the wall .........
Topics: radio, amateur, mhz, antenna, frequency, repeater, ham, amateur radio, radio today, ham radio,...
73 Magazine (Amateur Radio Today)
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73 Magazine November/December 1975 (#182) Flip Flops Exposed ...... WB2NEL 30 Breakthrough in Fast Scan ATV ...... WB4YTU 37 Strobing Displays is Cool ...... WB4DCV 49 The Sensuous Tuned Lunch Box ...... W2FEZ 52 Loudest Signal in the World? ...... W0SYK 57 Build a Deluxe TTY Keyboard ...... K7YGP/7 63 Eyes for Your Shack ...... W0ACR 74 Predicting Third Order Intermod ...... WA2OKZ 95 Feedline Primer ...... WA1SNG 103 Caught "Spying" by the Gestapo ...... W1BNN 117 Why Tubes Haven't...
Topics: mhz, output, amateur, input, repeater, power, magazine, circuit, ham, antenna, circuit board, texas...
73 Magazine (Amateur Radio Today)
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73 Magazine November 1983 (#278) Construct the Callsign Power Supply - KAIQZ put together aesthetics and electronics to produce a power supply that gives you more than good regulation ...... KA1QZ 10 The Magical Audio Filter - A variable frequency notch filter plus a peaking circuit will do wonders for your reception. And this project will almost build itself ...... W6QIF 14 Keyboard Your Way to Happiness - If happiness is perfect Morse, then this project is pure heaven. Special construction...
Topics: amateur, mhz, radio, antenna, tor, frequency, ihe, output, circuit, morse, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine August 1983 (#275) Construct This Customized Power Supply - Whether you want 5 Amps or 30 this supply can give it to you. But you only pay for what you need ...... W9ODK 8 VisiCode: The VIC 20 Way to Extra Class - First you get random practice groups Then you get the answers ...... W7LTH, KA7AQA 14 Running Scared at Spratly - Only steel nerves and luck stood between the 1979 DXpeditlon and disaster ...... KB7NW 20 The COR of a Reliable Repeater - Carrier-operated relays are the...
Topics: amateur, mhz, radio, antenna, frequency, ihe, tor, magazine, voltage, amateur radio, toll free,...
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73 Magazine November 1996 (#434) Switching Power Supplies - Different is good! ...... NZ9E 10 Designing RF Probes - A simple one-hour test equipment project ...... KB4ZGC 17 A Low Current Light - Great portable operation ...... KB4ZGC 19 Can You Top This? - The worlds tallest mobile antenna? ...... N6JF 20 The CCD antenna is now available for the amateur bands - A QRP/SWR Power Meter ...... KB4ZGC 28 A Dirt-Cheap Broadband 80 Meter Vertical - The "outhouse" antenna ...... W0RKU 30...
Topics: antenna, radio, amateur, mhz, frequency, ham, power, voltage, output, amateur radio, radio today,...
73 Magazine (Amateur Radio Today)
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73 Magazine February 1980 (#233) CB-to-10 FM Continued - another way to join the fun on 29.6 ...... WB2EQG 42 Sunspot Predictions for 1980 - whither propagation? ...... WA3NKP 47 An End to Dials and Meters? - nope ... but discrete LEDs make an interesting substitute ...... Staff 50 The Paper, the Station, and the Man - a brief history of the New York Times radio stations ...... W3CFC 54 QRP from Canton Island - proving all things are possible ...... KH6GB 63 In Search of Power line Interference...
Topics: mhz, amateur, radio, antenna, frequency, circuit, power, signal, khz, amateur radio, power supply,...
73 Magazine (Amateur Radio Today)
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73 Magazine August 1990 (#359) Omni-Gain Vertical Collinear for VHF and UHF - Easy to build antenna for repeater or home ...... WA6SVT 10 High on ATV - A marriage made in heaven! ...... KS8J 15 Low Power Two Meter FM Transmitter - Inexpensive, lightweight and expendable! ...... WA4ADG 18 High Altitude Ballooning - Send your rig to the edge of space! ...... WB8ELK 30 Yaesu Service Survey - Refreshingly flexible ...... WB6NOA 46 Model Rocket ATV - Warp-speed television ...... N8IYD 52 R/C...
Topics: amateur, radio, mhz, atv, antenna, transmitter, frequency, ihe, ham, amateur radio, feedback card,...
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73 Magazine June 1990 (#357) The Field Day Special The "Ray Gun" - A concentric combo Mode B antenna ...... KA5DNP 10 TNC Connect Alarm - Did anyone call while I was out? ...... DA1AU/WB9EGA 14 COSIN: The COmputer Student Information Network - High school credits for ham radio ...... WB2MIC 18 Big But Cheap! - Put a big signal on 40 meters for under $20 ...... K1NIT 22 Two Meter Portable Quad - Sturdy, easy to build ...... K3YWY 24 Tune in on the New Frontiers of VLF - A simple...
Topics: radio, amateur, antenna, ham, mhz, ihe, hams, fcc, icom, kit, amateur radio, ham radio, feedback...
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73 Magazine January 1988 (#328) Welcome, Newcomers! - Let's talk about it! ...... KA1HY 4 Working the World Fast - Heed this advice and you can't miss ...... N6HYK 11 W87PAX: DXing from the Pan American Games - A record-breaking success ...... KA9OIH 14 Troubleshooting Tricks #1 - The road to repair is easier than you think ...... Harshbarger 26 The Colvins - DXing is the life for Lloyd and Iris ...... N6HYK 28 DX with QSL Cards - Tips to improve returns ...... N8FU 31 A Case for DX Nets -...
Topics: amateur, mhz, radio, frequency, antenna, ssb, island, net, ham, amateur radio, mhz daily, feedback...
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73 Magazine May 1991 (#368) The Copperhead Keyer Paddle - The perfect touch! ...... KI5AZ 9 The Handy Inductance Bridge - For measuring small coils ...... KB4ZGC 11 The Mini-Keyer - A smaller and newer version of an old friend ...... WB9YBM 14 Covert Hamming - A design for your next secret mission ...... K6BRP 21 Software for the HamShack, Part I - Useful ham calculations you can program yourself! ...... WA4BLC 22 Two QRP Transmitters - Dust the ethers and bend the waves! ...... KI5AZ 26 A...
Topics: radio, amateur, mhz, antenna, ham, frequency, meter, amateur radio, radio today, feedback card, ham...
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73 Magazine July 1983 (#274) You Can Build This Code Trainer - More than a mere code-practice oscillator this CPU-controlled trainer features burned-in practice groups Flick a switch and you have a keyer ...... K7ZOV 12 The True Story Behind Heard Island - Fighting bad weather, shady ship owners, and bad press, the HlDXA expedition forged its way to the DXer's dream. But getting there was only half the battle ...... VK9NL 20 More Stable Than a Rock - An Honorable Mention winner in 73's...
Topics: amateur, mhz, antenna, frequency, ihe, radio, output, tor, magazine, amateur radio, power supply,...
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73 Magazine October 1990 (#361) Dual Voltage Bench Supply - Versatile solution for your power supply needs ...... W6WTU 10 The SPC Transmatch - Improved performance for 20 through 10 meters ...... W4RNL 22 ROBO-COPY - Automate your shack with a CW copier ...... WB9DYI 28 An Easy to Make 2 Meter Antenna - Make a strong J-Pole from an old TV antenna ...... AA5KB 32 Solar Car Race - Searching for an alternative ...... WB8ELK 34 Service Survey Wrap-Up - Plus -where to get your old rig fixed .........
Topics: radio, amateur, antenna, mhz, ham, qsl, frequency, ihe, amateur radio, feedback card, ham radio,...
73 Magazine (Amateur Radio Today)
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73 Magazine February 1995 (#413) Dual Bi-Square Loop for HF - Try this easy, low-cost approach on 20 and 2 meters ...... K5DKZ 18 Reading Morse Code on Your PC - Decipher Morse code right off the air, or improve your own fist ...... W6PRO 22 Cheap Dual-Band Yagi - A fine VHF/UHF beam made from old TV antennas ...... KA0NAN 46 Grounding and Lightning Protection, Part 1 - Protect your shack and yourself from lightning ...... W5UOJ 52 The Yaesu FT-900AT HF Transceiver - Base station performance...
Topics: radio, antenna, amateur, mhz, frequency, ham, meter, antennas, power, amateur radio, radio today,...
73 Magazine (Amateur Radio Today)
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73 Magazine June 1991 (#369) Three Bands With One Rock - Versatile QRP transmitter for 80, 40 and 20m ...... WW9X 10 Tune in on Philately - Immortalized in stamps ...... Schuessler 14 A Pseudo CW Filter - Be good to your ears ...... WR5B 18 Build the Brass Pounder's Keyer - A memory keyer that reproduces your true CW "fist" ...... AA6GG 22 SPSM Mobile Mount - Build this reliable Hustler classic ...... W6OAL 34 Parts Substitution - A beginner's guide ...... KB1MW/7 40 Software for the...
Topics: radio, amateur, ham, antenna, mhz, power, repeater, amateur radio, radio today, power supply,...
73 Magazine (Amateur Radio Today)
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73 Magazine February 1977 (#197) Give That Professional Look to Your Home Brew Equipment - win prizes ...... McClellan 28 You Already Have an Atomic Frequency Standard - here's how to use it ...... WD8ASL 32 Give The Hamburglar Heart Failure - car alarm system ...... WA5KPG 36 Contest Special Keyer - has short but adequate memory ...... WA2KUO 38 The Chintzy 12 - a junk box wonder ...... W1OOP 40 You Can Sound Better With Speech Pre-emphasis - a simple circuit which will work wonders .........
Topics: amateur, kit, mhz, fcc, antenna, frequency, radio, power, circuit, output, amateur radio, barrel...
73 Magazine (Amateur Radio Today)
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73 Magazine March 1975 (#174) Can a 7 foot 40m Antenna Work? - The small loop ...... W0PJG 33 The Secret of Antenna Gain - (Shhh -it's capture area!) ...... K2OAW 39 Twinlead Phased Array - Two elements on 40m - or any other band ...... WB2NQT 47 The Incredible Capacitive Antenna - Now: an 18" allband antenna ...... W0KGI 49 An 80m Phased Array - Switchable directivity ...... W2OZH 52 A Coax Amplifier for 450 MHz - 6 dB stacked collinear ...... W5GDQ 58 Invisible Antennas - Why ask for...
Topics: antenna, amateur, mhz, power, meter, radio, center, receiver, gain, magazine, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine December 1994 (#411) Kit Builders' Primer - Yeah, I built that ...... WB8VGE 10 Stretched Vertical Gain Antenna tor 6 Meters - Here's a way to dramatically improve your 50 MHz operating capabilities ...... WB2EQG 30 The CW Operator's Friend - Simply push a button and send those frequently-repeated CQs, IDs and QTHs ...... WV5Q 36 Polarity Protection Plus - Don't take a chance of smoking your next project! ...... K5DKZ 40 DTMF Computer Interface - Harness the power of your PC to...
Topics: radio, amateur, antenna, ham, mhz, mfj, power, kit, tor, amateur radio, radio today, ham radio,...
73 Magazine (Amateur Radio Today)
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73 Magazine November 1993 (#398) The FARA Project - An economical, easy-to-build, 25 watt 2 meter amplifier ...... A1GPO 10 Improved VOX Mobile Extender - Give your handheld the power of a mobile ...... K6YDW 20 The Solar Control-ar - A solar panel charge controller for all seasons ...... WB5PPV 26 Ramsey Electronics FX-146 Transceiver Kit - Roll your own 2 meter rig ...... KT2B 39 Azden AZ-61 6m FM Transceiver - Advanced features in the palm of your hand ...... WB6NOA 42 Index courtesy of...
Topics: radio, amateur, antenna, meter, mhz, repeater, battery, power, amateur radio, radio today, feedback...
73 Magazine (Amateur Radio Today)
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73 Magazine February 1989 (#341) Getting High On Packet - World-wide packet? Here's how on HF ...... WB6RQN 50 One-Stage 80-Meter CW Transceiver - Enjoy the thrill of rolllng your own rig ...... WB3ELL 28 TCM 3105 Modem For The Digicom > 64 - Plug in to 1200 baud packet ...... N4PLK, KJ4GP, W4KUM, WD4PVS 42 Simple CW IDer - Useful for repeater ID and unattended fox ...... WN0EHE 54 Kenwood TS-940S - First-class full-featured HF rig ...... WB6RQN 12 lCOM IC-781 - Scope out this DX dream...
Topics: radio, antenna, amateur, mhz, frequency, meter, ham, audio, amateur radio, feedback card, radio...
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73 Magazine October 1999 (#468) Need a UHF Dipper? - Part 1: Old TV tuners to the rescue! ...... W6WTU 10 HT Porta-Power - Project Portable extended power pkg for HTs ...... WB3CEH 15 FM CW! - Repeater code-practice sessions ...... WB9YBM 16 FYI: FQY - Another look at the Fractal Quad Yagi ...... KF7BS 18 Secrets of Transmission Lines - Part 3: More AC review ...... KE2QJ 22 The History of Ham Radio - Parts 1 and 2: From the birth of the wireless ages to 1920 ...... W9CI 31 The Digital Port -...
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73 Magazine July 1978 (#214) Enjoy All Five Bands - with this novice no-trap antenna ...... W8FX/4 32 Reincarnating Old Test Equipment - a 1942 capacitance meter is born again ...... W3BM 40 Finding Radio Pests - basics ...... WA1UUK 42 Video Magic For Your Home - to make boredom disappear ...... K4TWJ 44 Novice Guide To Phased Antennas - part II ...... W8HXR 48 Can A $20 FM Rig Work! - testing the VHF Engineering TX150 2m xmtr ...... WB4LJM, WA4WDL 52 Hiss Exterminator - an ear-saver for the...
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73 Magazine May 1989 (#344) Decoding OSCAR Telemetry, Part 1 - Decode any OSCAR beacon ...... G3RUH 20 AMSAT Satellite Tracking Software - Choose from a host of great tracking programs ...... W5IU 38 Experimental OSCARS - The story of the UoSAT program ...... G0/K8KA 62 Space Education Network - Bringing AO-13 into the classroom ...... K9PVW and Barr 74 Radio Links to Phase III-D - Making worldwide hamsat communication even more accessible ...... DJ4ZC 77 The AMSAT-NA Microsats - The new breed...
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73 Magazine December 1968 (#99) Using the First Ham Integrated Circuit - Includes several useful circuits ...... W6DNS 6 Mouse Tunnels - Hiding the wiring ...... K6HKB 12 Circular Modulation Monitor - A new scope ...... WA9IGU 14 The Mini-Square - Square wave in miniature ...... WB6BIH 16 Add-On FM Test Set - Simple to complex in easy stages ...... K9STH 18 The Elusive H Parameter - Not so elusive now ...... WB6BIH 20 Zero Temperature Coefficient VFO - Sure stability ...... W6WQC 24 75 Meter...
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73 Magazine May 1976 (#187) The Magnificent Sevens Microhelix ...... Jacoby 16 An All band Inverted Vee ...... WA5FGC 22 Squaring the Conical ...... Staff 24 Secret Antennas for Cliff Dwellers ...... WA6PXY 26 The Novice Inverted Vee ...... W8HXR 30 Closed Loop Antenna Tuning ...... WA5KPG 32 The 75-80m Broadbander ...... K2VGD 34 The Magic of a Matchmaker ...... W1CEJ 38 How to Coax Your Antenna ...... W6AGX 40 40m DXing - City Style ...... K8ANG 42 The Secret 2m Mobile Antenna ...... Staff 44...
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73 Magazine February 1985 (#293) VIC RTTY Resource - Is your VIC-20 ready for RTTY? Make it happen with N5ALE's foolproof software! ...... N5ALE 12 Satellite Supremacy - Sometimes 15 Watts just doesn't cut it with OSCAR 10. The solution? Use W2GEF's 60-Watt uplink amp-stripline construction makes building it a snap! ...... W2GEF 18 CB to Six - Why stop at 10 meters? KB5LF's Hy-Gain conversion will take you to VHF just as easily ...... KB5LF 22 Future Schlock - The strange tale of the KA5S...
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73 Magazine February 1988 (#329) Welcome, Newcomers! - Low power isn't always a disadvantage ...... KA1HY 4 Hamming Around - High tech trekking ...... KA8OVA 11 1750 Experimenters Band - Fun VLF transverter ...... WD4PLI 20 The Winners (Who says there's no action at 23 cm?) ...... 27 20 meter Mini Receiver - Super small superhet ...... K1BQT 28 Intro to 1750 meters - The lowdown on license-free fun ...... W2IMB 31 Drifting Along the Telegraph Trail - Landline brass pounding -looking back .........
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73 Magazine September 1987 (#324) Radio At Green Bank - This remote site in West Virginia is home to one of the most impressive collections of radio antennas in the world ...... AJ0N 16 A Foldover Cheapie - Convert scrap water pipe to a 40-foot fold-over antenna tower! ...... KF4BI 19 Out-of-the-Ordinary QTH's - Here are some ideas to help you gel out on your portable antenna - when you really need to ...... K4IPV 22 Non-Etched Swr Bridge - This five-dollar afternoon project will measure swr to...
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73 Magazine December 1965 (#63) Solid-State 432 Exciter - Puts out 8 watts on 432 MHz. A ham scoop ...... W9SEK 6 8058 Nuvistor Preamp for 432 MHz - Complete plans and layouts ...... I1L0V 10 UHF-VHF Dipper - 50 to 500 MHz with no work ...... WA1CCH 11 Transistorized FSM - Printed circuit board available for this one ...... W1JJL 14 Ham Christmas Gifts - Ho, ho, ho! It's that time again ...... 16 RF Measurements - Build a Q-meter and impedance bridge ...... K5JKX 20 A New Two Meter Heterodyne...
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73 Magazine December 1964 (#51) SSB Mobile Receiver - Lots of nice ideas in this one ...... W3ZFJ 6 Cheap Pair of Socks - Simple linear using inexpensive new tube ...... W6NKZ 10 28 Volt Supply - 10 amps at 28 volts for $10 ...... K6VNT 12 Weather Detector - Don't let a tornado suck you up ...... K5JKX 14 14 Elements on 432 - Simple yagi for 70 cm ...... K1CLL 16 Miniature Multiband Tuner - Very clever and useful ...... W6SFM 18 Bamboo Birdcage - Thanks to G4ZU and the boomless Quad ......W6WAW...
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73 Magazine (Amateur Radio Today)
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73 Magazine October 1976 (#192) Build a Weird 2 Band Mobile Antenna - fantastic parking lot car locater ...... W6AAQ 20 Build a Counter for Your Receiver - updating receiver fun ...... WA3YGJ 28 How Do You Use ICs? - part II ...... WA2SUT/NNN0ZVB 38 QRP Fun on 40 and 80 - have a real ball with just 5 Watts! ...... K5JRN 44 The Hybrid Quad - has low windload, expense, hassle ...... WB8VCS 48 Frequency Detector for Your Counter - sounds alarm when set frequency occurs ...... W2AOO 50 Programmable...
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73 Magazine (Amateur Radio Today)
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73 Magazine January 2001 (#482) SV8 from the Geranium - Mykonos is a great DXpedition - once you get there ...... G3SWH 10 Inside Digital TV/VCR Tuners - Part 5: Decimal-to-binary conversion program ...... W6WTU 14 Transistor Bias: The Secret Story - Shore up some of your shaky transistor theory by taking this tutorial ...... W2GOM/7 18 ATV 23cm FM Receiver - Kiwi TV- Part 1: New Zealand-style ...... ZL1AAN 23 ATV Exciter - Kiwi TV -Part 2: Latest addition to the Kiwi 23cm project ...... ZL1AAN...
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73 Magazine December 1960 (#3) Transistorized 220 MHz Converter - Crystal controlled too ...... W3HIX 8 RF Sniffer - Snooper sensitive RF detector which you will build ...... K5JKX/6 11 SSB Dynamic Demonstrator - Teaching SSB calls for some tricky stratagems ...... W2UQB 12 Capacity Meter - Two ranges : 0-40 pF (resolves 1 pF) and 0-900 pF ...... K8ERV 14 Station Control System - Even if you don't build this one it will give you ideas ...... W1TUW 16 The Multivibrator in VOX Circuitry -...
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73 Magazine April 1995 (#415) A Practical Weather Satellite Receiving System, Part 2 - Software and interfacing with me PC ...... ZR6UM 10 Build an Intelligent Relay - A quick-to-make microprocessor-based device, controlled by your HT ...... N8LXS 22 The Antenna Elevator - The closest thing to a skyhook ...... WB2DZF 36 Specialized Top-Band OX Receiving Loop - Listen to the action on 160 meters ...... G2BZQ 38 Build an Efficient HF Mobile Antenna - An electrically and mechanically sound design,...
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73 Magazine March 1976 (#185) Adventure ...... Bach 16 Tunable FM Receiver Strips ...... WlSNN 24 Surplus Circuit Boards -A Gold Mine of Parts ...... W0FEV 28 The Perils and Pleasures of Surplus Shopping ...... Thompson 30 Space Age Junque ...... W9CGI 34 A PC Board Bonanza ...... WA4LZM/W5SAY 38 Government Surplus: Is It All Gone? ...... WN5NBE 40 Inherit the Wind ...... W2AOO 44 Stereo -A New Type of CW Filter ...... W8KZM 48 160m Solid State Receiver ...... VK3ANY 52 Tubes Are Not Dead!...
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73 Magazine May 1990 (#356) SAREX-90 - Ham-In-Space Shuttle Missions ...... W3IWI, WA4SIR, W3XO 9 Sharing the Adventure with Young People - Maritime ham classroom with a conscience ...... KA1UKM 18 An Interview with Carole Perry, WB2MGP - Who's new in ham radio ...... KB2IGG 20 The Biggest Ham Country-Japan - Plus 9600 baud packet and tree antennas ...... WA1LBP 24 Tri-State Anti-Drug Air Show - Amateur radio ops say "Yes" to " Say no" ...... WB8YKS 45 Wideband Pre-amplifier...
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73 Magazine September 1991 (#372) The Square Pancake Antenna - A 20-inch square marvel! ...... W2SMR 18 Indoor 10 Meter Beam - A 2-element "invisible" coaxial antenna ...... N9CAP Economical Mobile HF Antenna - Modify a Radio Shack CB antenna for the HF bands ...... AA6NG 26 DXDA Awards and Countries - The latest update, thanks to Bob Reed WB2DIN ...... Staff 30 Dual-Band Vertical - This one's for the 160 and 1750 meter bands ...... WD4PLI 38 The L-O-N-G Long-Wire - What is it like to...
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73 Magazine June 2003 (#511) QRP Antenna Showdown - What's the best antenna to use with your QRP rig? ...... K7UGQ 10 Field Day 2002: Out on Our Own - Can you spell duct tape? ...... WA9PYH 14 Now Hear This! - Home-brew yourself a magnetic headphone ...... N4HCJ 18 Yes, I Built Sixteen Log Periodic Antennas! - Part 1: Theory and tests ...... W4AEO 20 Travels with Henryk -Part 13 - Borneo hams strut their stuff ...... SM0JHF 30 Reverse Breakdown Voltage Measurement Adapter - Build this simple...
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73 Magazine May 1985 (#296) Discover the Discone - Is this the perfect aerial? Consider simple wire constrcution, easy one-time tuning, and flat swr from 3.5 to 28 MHz ...... W1GV/4 17 Two for Two - We respectfully offer a pair of radiators for the two-meter band so elegant, yet so simple, that you will kick yourself for not thinking of them first ...... WA4BLC 22 The Snake with LED Eyes - A tall tale from the Antlers- wherethe decoration is strange and the stories are even stranger .........
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73 Magazine December 1967 (#87) 250 kHz to 29.75 MHz Stabilized Converter - A phase-locked receiver with 500 kHz bands ...... K5LLI 6 Some Experiments With Stacked Beams - Getting more gain out of your array ...... VE1TG 14 Simple Antenna Mount for Satellite Work - An el-ez antenna mount using two rotators ...... W4HJZ 20 Strong Signal Interference - AGC modifications for improved cross-mod performance ...... K6KA 22 Charging Dry Batteries - An approach to longer-lived primary cells .........
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73 Magazine March 1989 (#342) Mnemonic Morse - Use one digital system to learn another ...... W8LHL 52 Grid Square Location Aid - Invaluable antenna aiming program for microwavers ...... WB6IGP 55 Control Head for the TS-440S - Go HF mobile -with the 440S in the trunk! ...... WB0UVN 18 Switching for Older RF Amps - Safely key any linear amp with a newer HF rig ...... WA4BLC 19 Link Controller for the S-COM 5K - Turn this popular controller into a repeater networker ...... KF7FW 24 Breadboard a...
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73 Magazine October 1963 (#37) Do-it-Yourself WBFM Transceiver ...... K5JKX 8 Why Johnny Ham Can't Hear - (with apologies to Rudolph Flesch) ...... W6VAT 12 Why Fight Ohm's Law? ...... K5HPT 16 Tri-Element Remotely Tuned Yagi ...... WB2CQM 22 Rules of Thumb - Or How to Get in the Ballpark and Stay ...... W5IUR 28 Combination Antenna Coupler ...... W3WPV 30 The Minute Motor ...... W3WPV 36 Filament Transformer Conversion ...... W5VOH 40 144 MHz Nuvistor Converter ...... W9DUT 44 The Portable...
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73 Magazine February 1990 (#353) Enforcing PRB-1 - Ham antenna lib is moving forward. Keep it up! ...... KA7FQW 9 The Great San Francisco Quake '89 - Hams do it again, beautifull...mostly ...... WA6ITF 18 Contest Quality Headset and Mike - Double duty for your VHF headset mike ......VE5XZ 10 Home-brew Spectrum Analyzer - Nothing like seeing what's going on ...... KE0UV 41 Protel Easytrax - What a breeze! PCBs on your PC ...... WB9RRT 13 Ramsey SA-7 Broadband RF Amplifier - A...
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73 Magazine November 1971 (#134) A Big Three Element Beam - Three elements on 75m - ZOWIE! ...... W4AXE 13 Remote Tune Your Groundplane - This is a real screwed up antenna ...... W2AOO 17 How to Build an Economast for Under $50 - Towerless is powerless in working DX ...... WB2FBF 21 A Gain Vertical Antenna for 2 Meter FM - 10 dB = 10 X power, transmit and receive! ...... K9STH 25 Photographing Radio Equipment - Maybe we can have better pictures in 73? ...... W2EEY 29 Biasing the Transistor...
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73 Magazine March 2003 (#508) Build Your DREAM Antenna - As in Dual-suspension, Removable, Easy-to-build, Amateur-radio, Multiple-band, 10-meter mobile antenna system ...... AC3L 10 All Keyed Up - Over this neat project ...... K8ZOA 14 Junkbox Telephone Recording Adapter - Caught on tape ...... KC5MFY 21 Meter Made - Here's how to recycle those VU meters in old stereos ...... N2DCH 23 Autobiography of Everyham -Part 1 - How many times do you see yourself in this story? ...... WB9YBM 26 All...
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73 Magazine (Amateur Radio Today)
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73 Magazine February 1997 (#437) Amateur Radio and Linux - Software home-brewing is here! ...... W9IF 10 Elegant Rotating Revisited - An enhanced Beam-aiming circuit ...... W1ZZB 17 Antenna Tuners - Do we really need them? ...... W6YBT 21 The Topbander - A cheap and easy antenna tuner for 160 meters ...... W8ND 23 Build The Turbo Digi-Sniffer - A simple-to-make digital field strength meter ...... AH2HR/5 26 Sumas Mountain High - Building a self-sufficient repeater tower on a British Colombian...
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73 Magazine January 1975 (#172) Using The W. U. Desk Fax ...... K7QXL 25 How to Find the Satellite ...... WB8DQT 31 RTTY Secrets ...... W3JJU 42 The 432 Receiver ...... K1CLL 46 The AN/GR R-5 Receiver ...... W6JTT 64 TTL a s a Decoder Mode ...... W9CGI 57 Simplifying Satellite DXing ...... WB5ASA 77 Blow a Bundle on TTLs ...... K2OAW 81 The R-511, A Real Surplus Bargain ...... W6JTT 86 How Not to be a Loser ...... W9KXJ 91 The Versatile Transistor Checker ...... W5WGF 94 SSTV Video Analysis...
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73 Magazine December 1966 (#75) Transistor Power Supplies - Useful information on low-voltage DC supplies ...... W6GXN 10 The Sideband Escalator - Have you tried SSB speech clipping? ...... W6TAQ 16 A Ham Electronic Counter - Determine your frequency the modern way ...... K7UDL 20 The Novice Pair - Build a practical, modern novice station ...... W1JJL 28 A Lab-Type Power Supply - Regulated low-voltage output; PC construction ...... W6GXN 38 QRZed the YL - The frustrations of an YL's husband...
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73 Magazine December 1962 (#27) Two Meter VFO - Very stable and uses one tube. Dandy bandspread ...... W6TKA 6 Modifying the Sixer - For a 50% power increase ...... K4ZQQ 9 Modifying the HE-45 - Improving the modulation & power output meter for this nice rig ...... WA2INM 10 The Irving Hiverter 50 - Six meter SSB converter tested at HQ by W1MEL. Works ...... Staff 12 Alternators - With mobile SSB coming at us in a rush we will be needing these ...... K8ERV 16 432 MHz Antenna Tuner -...
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73 Magazine October 1989 (#349) Setting Up a Packet Radio Station - Read this for the info the how-to books left out! ...... WB6RQN 14 Digital Dreams - The future of packet radio has arrived ...... N3EUA 28 TNC PPM without the PC - Give your older TNC personal mailbox capability with just a few keystrokes ...... WB6WKB 30 Packet Radio in Japan - Bits of info on packet in the land of the Rising Sun ...... WA1LBP 38 Packet Radio and Hi-Tech Nomadics - How packet radio fits in with the world's...
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73 Magazine (Amateur Radio Today)
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73 Magazine November 1991 (#374) Voice ID on a Chip - Throw your voice with this versatile Circuit ...... WB8ELK 11 Portable Frequency Counters - Versatile test equipment that you can really count on ...... WB6NOA 15 Half-Wave Gain Antenna - For 450 MHz handie talkies ...... AD5X 26 The Heli-Hat Antenna - An 18-inch wonder for 10-17 meters ...... KB4ZGC 32 Showdown in Portland - Discover the thrill of radiosporting ...... K0OV 38 Microprocessor Repeater Controller, Part II - This month, the...
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73 Magazine February 1983 (#269) Unleash the TS-900 - A rig like this deserves more room than 2meters can give. Get on HF (including WARC bands) with this transverter ...... W4BF 10 Four-Tone Audio Oscillator: A Potent Troubleshooter - For any test that requires a tone, this oscillator does the job It can also be computer-controlled ...... W7BBX 20 Superman's Repeater Control System - This simple system offers four independent on/off outputs. Just duck into any phone booth to use it ...... K3IJ...
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73 Magazine July 1990 (#358) Foxhunt Radio Direction Finder - Homing in by sight and sound ...... W9DUU 9 The Hidden Receiver Hunt - Exciting sleuthing without expensive equipment ......WA4TEM 12 Ten-Tec Service - Exceptionally personal ...... WB6NOA 14 Two Meter Tracking Transmitter - Low-cost beacon ...... WA4ADG 16 You Are Here - Two ways to prove it ...... NY9F 18 Transmitter Hunting Safety - Is foxhunting a blood sport? ...... KA9KAG 24 C-64 &1541 Drive 12-Volt Conversion - DC power...
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73 Magazine April 1967 (#79) The Super Duper Super - It may not be a super, but it's sure super duper ...... WN1ECCH 6 A Toroidal VFO - An excellent VFO with many interesting mechanical features ...... W4BRS 10 Transceiver CW Filter and Monitor - Improve your transceiver's CW capability ...... WlDCG 14 Dreadful Ham Cliches - Special for April ...... K3SUK 16 The Converter Converter - Stick it between your UHF converter and your low-frequency receiver ...... W1OOP 18 The Ratnick Two'er - It's a...
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73 Magazine August 1994 (#407) Stand-Alone DDS - The Kendraboard provides PC-free frequency control...... VA3BH 10 A Novel Dual-Band, Single Feedline, VHF/UHF Antenna - Good performance for less than a sawbuck ...... W7KOH 26 Design and Build a Dummy Antenna - A 40W, 50 ohm AF dummy load with a VSWR 1.3:1 at 500 MHz ...... VE5ZE 30 The Coleman (Mini)-Kilowatt - Extend your station's working range for next to nothing ...... WB2WIK/6 53 Mini-Joystick Scanning - Shift your tuning into high gear!...
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73 Magazine July 1997 (#442) ATV is Here to Stay! - Getting started with amateur television ...... W5ACM 10 How to See What You Hear - Warning! This is easy! ...... KC5ODM 14 C-Band low Noise Amplifier - Use discarded satellite receiver parts to soup up your ATV system ...... WD5BQN 19 Video Titlers for ATV - If you're serious about ATV, a video titler is the way to go ...... N5JXO 21 Antennas for Amateur Television, Part 1 - An overview of the most useful ...... K0NM 27 Home-brew Yagis For...
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73 Magazine January 1963 (#28) Nu 1-1/4 Meter Converter - Three 6CW4 nuvistors in a sensitive 220 MHz converter ...... WA2INM 6 RF Controlled Break-In - Automatic send-receive controlled by the key ...... W8MQW 8 NTSC Signal for Ham TV - Ham-TV'ers will want to read this one ...... K2HQY 10 73 Tests the WRL Tech-ceiver - Works fine. Six meter transceiver ...... Staff 18 Linear Amplifier - 3-1000Z kilowatt ...... W6JAT 20 73 Reviews the PMR-8 - Fine little mobile receiver by Elmac ...... W6FNG...
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